If you're like me and struggling to settle on an expensive CAM... I'd like to recommend 95 Maradona. He is truly what I've been looking for in a CAM.
He has 5* skills and immense agility / balance. He weaves in and out of defences better than Messi. I don't like my CAM's to be like KDB, Gullit type players, but small and agile like Zola, Messi etc.
If you have the budget for him, I recommend you try 91 or 95 Maradona. His 3* weak foot doesn't let him down because he somehow positions himself and shoots with his strong foot all the time.
Only downside is stamina, but even if you only play him for 70 mins, he'll dramatically improve your team.